ooxml: preserve several simple types of sdt

This patch is to preserve the sdt blocks for several simple sdt types:
equation, picture, citation and group.

This patch reuses the infrastructure created at commit
55211e612d2cbed03dd81c039d07ea4e936c2804 to grab-bag the properties of
the sdt block and write them back on export, with small modifications
in particular related with the fact that these tags don't have
children.

The type of the property tags equation, picture, citation and group
was modified in the ooxml model file to be able to process them. They
were previously empty.

A unit test was added to check the preservation of these fields.
Another had to be modified.

Change-Id: Ica1a340f589f5d6c85c1a35d2a3a4bf930eb2d8a
diff --git a/sw/qa/extras/ooxmlexport/data/simple-sdts.docx b/sw/qa/extras/ooxmlexport/data/simple-sdts.docx
new file mode 100644
index 0000000..294ae79
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/simple-sdts.docx
Binary files differ
diff --git a/sw/qa/extras/ooxmlexport/ooxmlexport.cxx b/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
index ed5eb96..3b0728f 100644
--- a/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
+++ b/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
@@ -2805,7 +2805,7 @@ DECLARE_OOXMLEXPORT_TEST(testCitation,"FDO74775.docx")
    xmlDocPtr pXmlDoc = parseExport();
    if (!pXmlDoc)
        return;
    xmlNodeSetPtr pXmlNodes = getXPathNode(pXmlDoc,"/w:document/w:body/w:p[1]/w:r[3]/w:instrText");
    xmlNodeSetPtr pXmlNodes = getXPathNode(pXmlDoc,"/w:document/w:body/w:sdt/w:sdtContent/w:p[1]/w:r[3]/w:instrText");
    xmlNodePtr pXmlNode = pXmlNodes->nodeTab[0];
    OUString contents = OUString::createFromAscii((const char*)((pXmlNode->children[0]).content));
    CPPUNIT_ASSERT(contents.match(" CITATION [Kra06]"));
@@ -2862,6 +2862,20 @@ DECLARE_OOXMLEXPORT_TEST(test76108, "test76108.docx")
    assertXPath(pXmlDoc, "/w:document[1]/w:body[1]/w:p[1]/w:r[1]/w:fldChar[1]", "fldCharType", "begin");
}

DECLARE_OOXMLEXPORT_TEST(testSimpleSdts, "simple-sdts.docx")
{
    xmlDocPtr pXmlDoc = parseExport("word/document.xml");

    if (!pXmlDoc)
       return;

    assertXPath(pXmlDoc, "/w:body/w:sdt/w:sdtPr/w:picture", 0);
    assertXPath(pXmlDoc, "/w:body/w:sdt/w:sdtPr/w:group", 0);
    assertXPath(pXmlDoc, "/w:body/w:sdt/w:sdtPr/w:citation", 0);

}


#endif

CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/sw/source/filter/ww8/docxattributeoutput.cxx b/sw/source/filter/ww8/docxattributeoutput.cxx
index 42ca6bd..f3c97d0 100644
--- a/sw/source/filter/ww8/docxattributeoutput.cxx
+++ b/sw/source/filter/ww8/docxattributeoutput.cxx
@@ -382,16 +382,23 @@ void DocxAttributeOutput::WriteParagraphSdt()

        // output sdt properties
        m_pSerializer->startElementNS( XML_w, XML_sdtPr, FSEND );
        m_pSerializer->startElement( m_nSdtPrToken, FSEND );

        uno::Sequence<xml::FastAttribute> aChildren = m_pSdtPrTokenChildren->getFastAttributes();
        for( sal_Int32 i=0; i < aChildren.getLength(); ++i )
            m_pSerializer->singleElement( aChildren[i].Token,
                                          FSNS(XML_w, XML_val),
                                          rtl::OUStringToOString( aChildren[i].Value, RTL_TEXTENCODING_UTF8 ).getStr(),
                                          FSEND );
        if( m_pSdtPrTokenChildren )
        {
            m_pSerializer->startElement( m_nSdtPrToken, FSEND );

        m_pSerializer->endElement( m_nSdtPrToken );
            uno::Sequence<xml::FastAttribute> aChildren = m_pSdtPrTokenChildren->getFastAttributes();
            for( sal_Int32 i=0; i < aChildren.getLength(); ++i )
                m_pSerializer->singleElement( aChildren[i].Token,
                                              FSNS(XML_w, XML_val),
                                              rtl::OUStringToOString( aChildren[i].Value, RTL_TEXTENCODING_UTF8 ).getStr(),
                                              FSEND );

            m_pSerializer->endElement( m_nSdtPrToken );
        }
        else
            m_pSerializer->singleElement( m_nSdtPrToken, FSEND );

        m_pSerializer->endElementNS( XML_w, XML_sdtPr );

        // sdt contents start tag
@@ -6889,6 +6896,14 @@ void DocxAttributeOutput::ParaGrabBag(const SfxGrabBagItem& rItem)
                        AddToAttrList( m_pSdtPrTokenChildren, FSNS( XML_w, XML_docPartUnique ), "" );
                }
            }
            else if (aPropertyValue.Name == "ooxml:CT_SdtPr_equation")
                m_nSdtPrToken = FSNS( XML_w, XML_equation );
            else if (aPropertyValue.Name == "ooxml:CT_SdtPr_picture")
                m_nSdtPrToken = FSNS( XML_w, XML_picture );
            else if (aPropertyValue.Name == "ooxml:CT_SdtPr_citation")
                m_nSdtPrToken = FSNS( XML_w, XML_citation );
            else if (aPropertyValue.Name == "ooxml:CT_SdtPr_group")
                m_nSdtPrToken = FSNS( XML_w, XML_group );
        }
        else
            SAL_INFO("sw.ww8", "DocxAttributeOutput::ParaGrabBag: unhandled grab bag property " << i->first );
diff --git a/writerfilter/source/dmapper/DomainMapper.cxx b/writerfilter/source/dmapper/DomainMapper.cxx
index 7c25991..435919e 100644
--- a/writerfilter/source/dmapper/DomainMapper.cxx
+++ b/writerfilter/source/dmapper/DomainMapper.cxx
@@ -2229,7 +2229,11 @@ void DomainMapper::sprmWithProps( Sprm& rSprm, PropertyMapPtr rContext )
        m_pImpl->m_pSdtHelper->getLocale().append(sStringValue);
    }
    break;
    case NS_ooxml::LN_CT_SdtPr_equation:
    case NS_ooxml::LN_CT_SdtPr_docPartObj:
    case NS_ooxml::LN_CT_SdtPr_picture:
    case NS_ooxml::LN_CT_SdtPr_citation:
    case NS_ooxml::LN_CT_SdtPr_group:
    {
        // this is an unsupported SDT property, create a grab bag for it
        OUString sName = OUString::createFromAscii((*QNameToString::Instance())(nSprmId).c_str());
diff --git a/writerfilter/source/ooxml/model.xml b/writerfilter/source/ooxml/model.xml
index 417a0de..d80f2e2 100644
--- a/writerfilter/source/ooxml/model.xml
+++ b/writerfilter/source/ooxml/model.xml
@@ -18855,7 +18855,7 @@
            <optional>
              <choice>
                <element name="equation">
                  <ref name="CT_Empty"/>
                  <ref name="CT_OnOff"/>
                </element>
                <element name="comboBox">
                  <ref name="CT_SdtComboBox"/>
@@ -18873,7 +18873,7 @@
                  <ref name="CT_SdtDropDownList"/>
                </element>
                <element name="picture">
                  <ref name="CT_Empty"/>
                  <ref name="CT_OnOff"/>
                </element>
                <element name="richText">
                  <ref name="CT_Empty"/>
@@ -18882,10 +18882,10 @@
                  <ref name="CT_SdtText"/>
                </element>
                <element name="citation">
                  <ref name="CT_Empty"/>
                  <ref name="CT_OnOff"/>
                </element>
                <element name="group">
                  <ref name="CT_Empty"/>
                  <ref name="CT_OnOff"/>
                </element>
                <element name="bibliography">
                  <ref name="CT_Empty"/>